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3 years ago

Which ones are parallel?

Mathematics

2 answers:

Zanzabum3 years ago

6 0

Answer:

a║b

Step-by-step explanation:

amid [387]3 years ago

3 0

The answer is : a||b

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Helllllppppppppp!!!!! Pleaseeeeeee!!!!!!!!!!!!

maks197457 [2]

Answer:

x=138

Step-by-step explanation:

68+70+a=180

138+a=180

a=42

180-42=x

x=138

5 0

3 years ago

I need help with this question I don't know if you can see it

Dovator [93]

$\begin{gathered} (-5,-6)\Rightarrow C \\ (1,-7)\Rightarrow K \\ (4,4)\Rightarrow A \\ (-6,-2)\Rightarrow F \\ \text{Star}\Rightarrow(-9,3) \\ Heart\Rightarrow(-5,-9) \\ \text{Lightning}\Rightarrow(3,-8) \\ Triangle\Rightarrow(1,-8) \end{gathered}$

5 0

1 year ago

How do you solve this step by step??

KonstantinChe [14]

Answer:

Step-by-step explanation: 6x+5x=3x+2x-54

11x=5x-54

+5x +5x

16x=54

16 16

x=3.375

3 0

3 years ago

Suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company claims that the percentage

quester [9]

Answer: a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

Sample size n = 100

Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : $H_0:p=P$

Alternate hypothesis : $H_1:p\neq P$

So, the test statistic would be

$z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252$

Since α = 0.05

So, critical value of z = 1.96

p-value = P(Z>Z(calculated)

Using the excel function , we get that

$P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219$

Hence, a) -0.2252, b) 0.8219

6 0

3 years ago

Select the correct answer.

zhannawk [14.2K]

You have a good day and good luck on that question

8 0

3 years ago